1. Division of Invertebrate Zoology, American Museum of Natural History, New York, NY 10024, USA
2. Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92037, USA
3. NMFS, National Systematics Laboratory, National Museum of Natural History, Smithsonian Institution, MRC-153, PO Box 37012, Washington, DC 20013, USA
4. Center for Bioinformatics and Computational Biology, University of Maryland, College Park, MD 20742, USA
5. Universität Innsbruck, Department of Zoology, Technikerstr. 25, 6020 Innsbruck, Austria
6. Wellcome Sanger Institute, Hinxton, Cambridgeshire CB10 1SA, UK
7. Josephine Bay Paul Center, Marine Biological Laboratory, Woods Hole, MA, 02543